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LT1959CS8#PBF

DC-DC Switching Buck (Step Down) Regulator, Adjustable, 4V-16Vin, 1.21V-12.9Vout, 4.5Aout, SOIC-8

LINEAR TECHNOLOGY LT1959CS8#PBF

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Manufacturer Part No:
LT1959CS8#PBF
Order Code:
1273496
Technical Datasheet:
LT1959CS8#PBF   Datasheet
See all Technical Docs

Product Overview

The LT1959CS8#PBF is a monolithic buck-mode Switching Regulator for use with battery-powered systems. It will operate down to 1.21V output. A 4.5A switch is included on the die along with all the necessary oscillator, control and logic circuitry. High switching frequency allows a considerable reduction in the size of external components. The topology is current mode for fast transient response and good loop stability. A special high speed bipolar process and new design techniques achieve high efficiency at high switching frequency. Efficiency is maintained over a wide output current range by keeping quiescent supply current to 3.8mA and by utilizing a supply boost capacitor to saturate the power switch. Full cycle-by-cycle short-circuit protection and thermal shutdown are provided. Standard surface mount external parts are used, including the inductor and capacitors. A shutdown signal reduces supply current to 15µA.
  • Uses all surface mount components
  • Easily synchronizable
  • Cycle-by-cycle current limiting
  • Current mode control
  • Inductor size reduced to 1.8µH
  • 0.07R Saturating switch design
  • 15µA Shutdown current

Applications

Computers & Computer Peripherals, Power Management

Product Information

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:
Buck (Step Down)

:
4V

:
16V

:
1Outputs

:
SOIC

:
8Pins

:
4.5A

:
1.21V

:
12.9V

:
560kHz

:
125°C

:
-

:
-

:
MSL 1 - Unlimited
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Technical Docs (2)

No Longer Stocked

RM45.09

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